From the developer: "Lock My PC allows you to lock your computer with a password while you leave it unattended. It shows a lock screen, disables Windows hotkeys (like Alt+Tab, Ctrl+Alt+Del) and mouse. You can use a hotkey or the system tray to lock your PC. To unlock the computer you must enter correct password only. The program can log invalid entry attempts and has option to keep your PC locked even if power failure occurs or someone switch it off and on. It works under Windows 95/98/ME, Windows 2000 and Windows XP. In new version we added a better Windows 2000/XP lock engine, multimonitor support and special administrative options."